Adding aarch64, s390x and ppc64le to CI

[nicrowe00]

Adding aarch64,s390x and ppc64le for fedora

Closes #273

[omajid]

Any idea why GitHub Actions didn't run any testing legs for this PR?

Edit: It's probably invalid yaml syntax?

[omajid]

Thank you for doing this! This would be amazing to have!

[nicrowe00]

Any idea why GitHub Actions didn't run any testing legs for this PR?

Edit: It's probably invalid yaml syntax?

Yeah, it was invalid syntax that caused them not to run. Before I pushed the second time with the invalid syntax it was running but the new jobs were failing because the containers wouldn't start. I'll fix the invalid syntax so that the testing legs will run and debug why the containers won't start.

[omajid]

debug why the containers won't start.

I suspect that GitHub Actions aren't configured to run cross-architectures containers. With podman/docker, you need to use recent versions of the tool and pass special arguments to run cross-architecture contianers using emulators. We probably need to find equivalents (if possible at all) for GitHub Actions.

[tmds]

using emulator

Probably this is going to be sloooooooooow ... but we can give it a try and see what happens.